./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 065f95e1f01b1c2bb5cc332c26e118823e72d0e75cb3966f20aacf6dc1740b4a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:13:05,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:13:05,334 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 07:13:05,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:13:05,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:13:05,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:13:05,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:13:05,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:13:05,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:13:05,359 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:13:05,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:13:05,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:13:05,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:13:05,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:13:05,360 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:13:05,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:13:05,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:13:05,360 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:13:05,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:13:05,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:13:05,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:13:05,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:13:05,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:13:05,361 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:13:05,361 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:13:05,361 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:13:05,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:13:05,361 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:13:05,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:13:05,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:13:05,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:13:05,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:13:05,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:13:05,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:13:05,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:13:05,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:13:05,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:13:05,362 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:13:05,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:13:05,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:13:05,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:13:05,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:13:05,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:13:05,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:13:05,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:13:05,363 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 065f95e1f01b1c2bb5cc332c26e118823e72d0e75cb3966f20aacf6dc1740b4a [2024-12-02 07:13:05,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:13:05,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:13:05,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:13:05,571 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:13:05,572 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:13:05,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i [2024-12-02 07:13:08,181 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/data/0cfb2b31a/3053d0dd5c034f57a5336492dbda15d7/FLAG8b52f596c [2024-12-02 07:13:08,591 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:13:08,592 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i [2024-12-02 07:13:08,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/data/0cfb2b31a/3053d0dd5c034f57a5336492dbda15d7/FLAG8b52f596c [2024-12-02 07:13:08,764 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/data/0cfb2b31a/3053d0dd5c034f57a5336492dbda15d7 [2024-12-02 07:13:08,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:13:08,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:13:08,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:13:08,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:13:08,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:13:08,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:13:08" (1/1) ... [2024-12-02 07:13:08,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783d96b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:08, skipping insertion in model container [2024-12-02 07:13:08,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:13:08" (1/1) ... [2024-12-02 07:13:08,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:13:09,017 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i[4499,4512] [2024-12-02 07:13:09,022 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i[4559,4572] [2024-12-02 07:13:09,860 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:09,861 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:09,861 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:09,862 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:09,863 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:09,878 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:09,879 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:09,881 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:09,882 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,634 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,635 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:13:10,753 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:13:10,767 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i[4499,4512] [2024-12-02 07:13:10,768 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i[4559,4572] [2024-12-02 07:13:10,810 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,810 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,810 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,811 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,811 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,817 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,818 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,819 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,819 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-12-02 07:13:10,939 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,939 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 07:13:10,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-12-02 07:13:10,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:13:11,174 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:13:11,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11 WrapperNode [2024-12-02 07:13:11,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:13:11,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:13:11,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:13:11,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:13:11,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,300 INFO L138 Inliner]: procedures = 680, calls = 2639, calls flagged for inlining = 62, calls inlined = 11, statements flattened = 1027 [2024-12-02 07:13:11,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:13:11,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:13:11,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:13:11,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:13:11,312 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,318 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,383 INFO L175 MemorySlicer]: Split 567 memory accesses to 8 slices as follows [257, 2, 4, 8, 6, 248, 37, 5]. 45 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [0, 2, 2, 2, 0, 6, 2, 5]. The 504 writes are split as follows [257, 0, 0, 0, 2, 236, 9, 0]. [2024-12-02 07:13:11,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,421 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,462 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:13:11,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:13:11,463 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:13:11,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:13:11,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (1/1) ... [2024-12-02 07:13:11,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:13:11,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:13:11,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:13:11,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:13:11,521 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-12-02 07:13:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-12-02 07:13:11,521 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-12-02 07:13:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-12-02 07:13:11,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 07:13:11,521 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 07:13:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 07:13:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 07:13:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 07:13:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 07:13:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 07:13:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 07:13:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 07:13:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 07:13:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 07:13:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 07:13:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 07:13:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 07:13:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 07:13:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 07:13:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 07:13:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 07:13:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 07:13:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 07:13:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 07:13:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 07:13:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ntoh32 [2024-12-02 07:13:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ntoh32 [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:13:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:13:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 07:13:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-12-02 07:13:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 07:13:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-12-02 07:13:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:13:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 07:13:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 07:13:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 07:13:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 07:13:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 07:13:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 07:13:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 07:13:11,849 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:13:11,851 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:13:20,100 INFO L? ?]: Removed 248 outVars from TransFormulas that were not future-live. [2024-12-02 07:13:20,100 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:13:20,112 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:13:20,112 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 07:13:20,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:13:20 BoogieIcfgContainer [2024-12-02 07:13:20,113 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:13:20,115 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:13:20,115 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:13:20,120 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:13:20,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:13:08" (1/3) ... [2024-12-02 07:13:20,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9cdf2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:13:20, skipping insertion in model container [2024-12-02 07:13:20,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:11" (2/3) ... [2024-12-02 07:13:20,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9cdf2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:13:20, skipping insertion in model container [2024-12-02 07:13:20,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:13:20" (3/3) ... [2024-12-02 07:13:20,122 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be32_harness.i [2024-12-02 07:13:20,136 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:13:20,137 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_read_be32_harness.i that has 19 procedures, 217 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-12-02 07:13:20,190 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:13:20,201 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5920da0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:13:20,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:13:20,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 121 states have (on average 1.28099173553719) internal successors, (155), 122 states have internal predecessors, (155), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 07:13:20,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 07:13:20,217 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:13:20,218 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:13:20,219 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:13:20,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:13:20,224 INFO L85 PathProgramCache]: Analyzing trace with hash 471462587, now seen corresponding path program 1 times [2024-12-02 07:13:20,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:13:20,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482885965] [2024-12-02 07:13:20,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:13:20,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:14:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:14:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-12-02 07:14:48,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:14:48,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482885965] [2024-12-02 07:14:48,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482885965] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:14:48,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669264120] [2024-12-02 07:14:48,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:14:48,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:14:48,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:14:48,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:14:48,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:16:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:35,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 7835 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:16:35,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:16:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-12-02 07:16:35,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:16:35,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669264120] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:16:35,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:16:35,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:16:35,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229243260] [2024-12-02 07:16:35,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:16:35,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:16:35,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:16:35,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:16:35,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:16:35,926 INFO L87 Difference]: Start difference. First operand has 182 states, 121 states have (on average 1.28099173553719) internal successors, (155), 122 states have internal predecessors, (155), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 07:16:35,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:16:35,973 INFO L93 Difference]: Finished difference Result 357 states and 522 transitions. [2024-12-02 07:16:35,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:16:35,975 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2024-12-02 07:16:35,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:16:35,984 INFO L225 Difference]: With dead ends: 357 [2024-12-02 07:16:35,984 INFO L226 Difference]: Without dead ends: 176 [2024-12-02 07:16:35,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:16:35,993 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:16:35,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:16:36,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-12-02 07:16:36,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-12-02 07:16:36,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 116 states have (on average 1.2758620689655173) internal successors, (148), 117 states have internal predecessors, (148), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 07:16:36,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 243 transitions. [2024-12-02 07:16:36,049 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 243 transitions. Word has length 124 [2024-12-02 07:16:36,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:16:36,051 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 243 transitions. [2024-12-02 07:16:36,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 07:16:36,052 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 243 transitions. [2024-12-02 07:16:36,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 07:16:36,055 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:16:36,055 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:16:36,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:16:36,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:16:36,256 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:16:36,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:36,257 INFO L85 PathProgramCache]: Analyzing trace with hash 264158261, now seen corresponding path program 1 times [2024-12-02 07:16:36,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:36,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357337088] [2024-12-02 07:16:36,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:36,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:18,197 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-12-02 07:18:18,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:18,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357337088] [2024-12-02 07:18:18,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357337088] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:18,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117153606] [2024-12-02 07:18:18,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:18,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:18,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:18,200 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:18,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:19:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:55,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 7835 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 07:19:55,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:19:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-12-02 07:19:55,714 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:19:55,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117153606] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:55,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:19:55,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-12-02 07:19:55,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984008863] [2024-12-02 07:19:55,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:55,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:19:55,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:55,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:19:55,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:55,718 INFO L87 Difference]: Start difference. First operand 176 states and 243 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 07:19:57,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:57,069 INFO L93 Difference]: Finished difference Result 328 states and 465 transitions. [2024-12-02 07:19:57,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:19:57,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 124 [2024-12-02 07:19:57,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:57,072 INFO L225 Difference]: With dead ends: 328 [2024-12-02 07:19:57,073 INFO L226 Difference]: Without dead ends: 179 [2024-12-02 07:19:57,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:19:57,074 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 251 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:57,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 536 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 07:19:57,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-12-02 07:19:57,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-12-02 07:19:57,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 118 states have (on average 1.271186440677966) internal successors, (150), 120 states have internal predecessors, (150), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (55), 47 states have call predecessors, (55), 47 states have call successors, (55) [2024-12-02 07:19:57,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 253 transitions. [2024-12-02 07:19:57,095 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 253 transitions. Word has length 124 [2024-12-02 07:19:57,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:57,095 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 253 transitions. [2024-12-02 07:19:57,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 07:19:57,095 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 253 transitions. [2024-12-02 07:19:57,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 07:19:57,097 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:57,097 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:57,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 07:19:57,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:19:57,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:57,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:57,299 INFO L85 PathProgramCache]: Analyzing trace with hash -474242342, now seen corresponding path program 1 times [2024-12-02 07:19:57,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:57,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267135676] [2024-12-02 07:19:57,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:57,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-12-02 07:21:35,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:35,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267135676] [2024-12-02 07:21:35,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267135676] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:21:35,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438803282] [2024-12-02 07:21:35,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:35,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:21:35,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:21:35,536 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:21:35,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:23:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:15,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 7840 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 07:23:15,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:23:16,238 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-12-02 07:23:16,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:23:16,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438803282] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:16,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:23:16,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-12-02 07:23:16,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183091962] [2024-12-02 07:23:16,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:16,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:23:16,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:16,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:23:16,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:23:16,241 INFO L87 Difference]: Start difference. First operand 179 states and 253 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 07:23:18,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:23:18,257 INFO L93 Difference]: Finished difference Result 314 states and 446 transitions. [2024-12-02 07:23:18,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:23:18,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 126 [2024-12-02 07:23:18,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:23:18,261 INFO L225 Difference]: With dead ends: 314 [2024-12-02 07:23:18,261 INFO L226 Difference]: Without dead ends: 179 [2024-12-02 07:23:18,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:23:18,263 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 251 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:23:18,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 722 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 07:23:18,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-12-02 07:23:18,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-12-02 07:23:18,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 118 states have (on average 1.271186440677966) internal successors, (150), 120 states have internal predecessors, (150), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (53), 47 states have call predecessors, (53), 47 states have call successors, (53) [2024-12-02 07:23:18,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 251 transitions. [2024-12-02 07:23:18,276 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 251 transitions. Word has length 126 [2024-12-02 07:23:18,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:23:18,277 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 251 transitions. [2024-12-02 07:23:18,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 07:23:18,277 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 251 transitions. [2024-12-02 07:23:18,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 07:23:18,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:23:18,279 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:23:18,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 07:23:18,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da65065-e323-4594-898b-36fc9e9fafe2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:23:18,479 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:23:18,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:18,480 INFO L85 PathProgramCache]: Analyzing trace with hash 603246485, now seen corresponding path program 2 times [2024-12-02 07:23:18,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:18,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831182455] [2024-12-02 07:23:18,480 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:23:18,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:24:49,870 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 07:24:49,870 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:24:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-12-02 07:24:53,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:24:53,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831182455] [2024-12-02 07:24:53,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831182455] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:24:53,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:24:53,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:24:53,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787485149] [2024-12-02 07:24:53,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:24:53,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:24:53,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:24:53,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:24:53,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:24:53,560 INFO L87 Difference]: Start difference. First operand 179 states and 251 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 07:24:54,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:24:54,886 INFO L93 Difference]: Finished difference Result 308 states and 433 transitions. [2024-12-02 07:24:54,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:24:54,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) Word has length 128 [2024-12-02 07:24:54,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:24:54,889 INFO L225 Difference]: With dead ends: 308 [2024-12-02 07:24:54,889 INFO L226 Difference]: Without dead ends: 179 [2024-12-02 07:24:54,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:24:54,890 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 184 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:24:54,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1508 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 07:24:54,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-12-02 07:24:54,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-12-02 07:24:54,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 118 states have (on average 1.271186440677966) internal successors, (150), 120 states have internal predecessors, (150), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2024-12-02 07:24:54,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 246 transitions. [2024-12-02 07:24:54,907 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 246 transitions. Word has length 128 [2024-12-02 07:24:54,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:24:54,907 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 246 transitions. [2024-12-02 07:24:54,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 07:24:54,908 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 246 transitions. [2024-12-02 07:24:54,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 07:24:54,909 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:24:54,909 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:24:54,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:24:54,910 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:24:54,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:24:54,910 INFO L85 PathProgramCache]: Analyzing trace with hash 528332228, now seen corresponding path program 1 times [2024-12-02 07:24:54,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:24:54,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950743711] [2024-12-02 07:24:54,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:24:54,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:26:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:26:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-12-02 07:26:27,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:26:27,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950743711] [2024-12-02 07:26:27,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950743711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:26:27,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:26:27,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:26:27,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250500707] [2024-12-02 07:26:27,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:26:27,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:26:27,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:26:27,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:26:27,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:26:27,989 INFO L87 Difference]: Start difference. First operand 179 states and 246 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 07:26:28,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:26:28,526 INFO L93 Difference]: Finished difference Result 191 states and 267 transitions. [2024-12-02 07:26:28,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:26:28,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 134 [2024-12-02 07:26:28,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:26:28,529 INFO L225 Difference]: With dead ends: 191 [2024-12-02 07:26:28,529 INFO L226 Difference]: Without dead ends: 189 [2024-12-02 07:26:28,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:26:28,530 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 3 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:26:28,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1660 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:26:28,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-12-02 07:26:28,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2024-12-02 07:26:28,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 124 states have (on average 1.2580645161290323) internal successors, (156), 127 states have internal predecessors, (156), 49 states have call successors, (49), 12 states have call predecessors, (49), 14 states have return successors, (59), 48 states have call predecessors, (59), 48 states have call successors, (59) [2024-12-02 07:26:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2024-12-02 07:26:28,548 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 134 [2024-12-02 07:26:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:26:28,548 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2024-12-02 07:26:28,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 07:26:28,548 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2024-12-02 07:26:28,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 07:26:28,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:26:28,550 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:26:28,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:26:28,551 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:26:28,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:26:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash 169818636, now seen corresponding path program 1 times [2024-12-02 07:26:28,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:26:28,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663321088] [2024-12-02 07:26:28,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:26:28,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms